simplify:

(5+18)(6+8)
divided by:
(45)^3

The answer is 322/91125.

Do parentheses: (23*(6+8))/(45^3)
Again: (23*14)/(45^3)
Evaluate numerator: 922/(45^3)
Evaluate denominator: 922/91125

That's as simple as it'll go.
What kind of math teacher gives a problem like that?

--KAL "Never Forget"
Beware the Blind Dragon